Igniters, after dummy perf vs flamegraph tests i found all events are enabled on GridAbstractTest: cfg.setIncludeEventTypes(EventType.EVTS_ALL); ticket [1] with flamegraph attached show 7-8% spending in GridCacheEventManager::addEvent, i suppose this extra functional for all inheritors.
If no objections i plan to set this events only for really requiring tests. thanks! [1] https://issues.apache.org/jira/browse/IGNITE-12122 -- Zhenya Stanilovsky